/*
 * Copyright (c) 2017, 2025, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */
package at.ssw.visualizer.cfg.model;

public class CfgEdgeImpl implements CfgEdge {   
    private CfgNodeImpl sourceNode;
    private CfgNodeImpl targetNode;
    private boolean symmetric;
    private boolean backedge;

    public CfgEdgeImpl(CfgNodeImpl sourceNode, CfgNodeImpl targetNode) {
        this.sourceNode = sourceNode;
        this.targetNode = targetNode;
    }
   
    public void setSymmetric(boolean symmetric){
        this.symmetric = symmetric;
    }
    
    public void setBackEdge(boolean isBackedge){
        this.backedge = isBackedge;
    }
        
    public CfgNode getSourceNode() {
        return sourceNode;
    }

    public CfgNode getTargetNode() {
        return targetNode;
    }

    public boolean isBackEdge() {
        return this.backedge;
    }

    public boolean isSymmetric() {
        return symmetric;
    }

    public boolean isReflexive() {
        return sourceNode==targetNode;
    }
    
    public boolean isXhandler() {
        return sourceNode.getBasicBlock().getXhandlers().contains(targetNode.getBasicBlock());
    }

    @Override
    public String toString(){
        return this.sourceNode.getBasicBlock().getName() + "->" + targetNode.getBasicBlock().getName();
    }  
}
